如何更改Kubernetes中的请求路径

Question

以下是我的nodejs微服务模式：

// api.ts
import { Router } from 'express';
const router = Router();
router.get(':id', ...doSomething);
router.post(':id', ...doSomething);
export default router;
// index.ts
import * as Express from 'express';
import API from './api.js';
basePath = process.env.basePath; // usually is project name
const app = Express();
// handle external call
app.use(basePath, API) // wish to remove this line 
// handle internal call from microservices
app.use(API) // preferred to be like this
...continue

下面是我的kubedeploy文件从同事那里继承

apiVersion: apps/v1
kind: Deployment
metadata:
  name: $CI_PROJECT_NAME
  namespace: $KUBE_NAMESPACE
spec:
  replicas: 1
  selector:
    matchLabels:
      app: $CI_PROJECT_NAME
  template:
    metadata:
      labels:
        app: $CI_PROJECT_NAME
    spec:
      imagePullSecrets:
      - name: gitlabcred
      containers:
      - image: registry.gitlab.com/$GROUP_NAME/$CI_PROJECT_NAME:$CI_COMMIT_REF_NAME
        imagePullPolicy: Always
        name: $CI_PROJECT_NAME
        ports:
        - containerPort: $PORT
        env:
          - name: basePath
            value: "$URL_PATH"
        resources: $KUBE_RESOURCES
        livenessProbe: $KUBE_LIVENESS
---
apiVersion: v1
kind: Service
metadata:
  name: $CI_PROJECT_NAME
  namespace: $KUBE_NAMESPACE
spec:
  ports:
  - port: $PORT
    protocol: TCP
    name: http
  selector:
    app: $CI_PROJECT_NAME
  sessionAffinity: ClientIP
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: $CI_PROJECT_NAME
  namespace: $KUBE_NAMESPACE
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: $KUBE_DNS_NAME
    http:
      paths:
      - path: /$URL_PATH
        backend:
          serviceName: $CI_PROJECT_NAME
          servicePort: $PORT
  - http:
      paths:
      - backend:
          serviceName: $CI_PROJECT_NAME
          servicePort: $PORT

上面的代码和设置在内部和外部呼叫中正常工作，如下所示：

http://publicurl.com/projecta/someid///some//外部呼叫，Microservice接收请求。Pathas＆quot as＆quota/projecta/someid＆quot;

'

http://publicurl.com/projectb/someid//外部呼叫，Microservice接收请求。Pathas＆quot as＆quotb/projectB/someid＆quot;

'

http：//projecta/someid//内部呼叫，微服务接收请求。

http：//projectb/someid//内部呼叫，微服务接收请求。

我希望删除" app.use(basepath，api("从我的微服务中以使其环境独立。

无论如何，我是否可以更改我的kubedeploy，以使其更改我从外部呼叫中收到的小路径，以"/some quot"？

更新：以下是DevOps

更新的最新Kubedeploy

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: $CI_PROJECT_NAME
  namespace: $KUBE_NAMESPACE
  annotations:
    kubernetes.io/ingress.class: "nginx"
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  rules:
  - host: $KUBE_DNS_NAME
    http:
      paths:
      - path: /$URL_PATH(/|$)(.*)
        backend:
          serviceName: $CI_PROJECT_NAME
          servicePort: $PORT
  - http:
      paths:
      - backend:
          serviceName: $CI_PROJECT_NAME
          servicePort: $PORT

我在上面尝试过，但我不明白它从浏览器侧重定向。示例：我在浏览器上打开http：//publicurl.com/projecta/help时，以某种方式在浏览器地址栏上http：//publicurl.com/help在http://publicurl.com/help上显示为"默认后端-404"由于入口无法找到匹配路径。

Answer 1

您可以使用重写注释，但请记住，这些是NGINX控制器的自定义扩展，并且不适合所有其他实现。

来自他们的示例：

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: rewrite
  namespace: default
spec:
  rules:
  - host: rewrite.bar.com
    http:
      paths:
      - backend:
          serviceName: http-svc
          servicePort: 80
        path: /something(/|$)(.*)